Eva Chen
Concordia University
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Publication
Featured researches published by Eva Chen.
International Journal of Electronic Business | 2005
Eva Chen; Rustam M. Vahidov; Gregory E. Kersten
A key requirement for customer-oriented e-marketplaces is the personalisation and customisation of products and services, as well as personalised fulfilment. Negotiations are at the core of these processes. In this paper an e-marketplace, eAgora, is discussed. It allows buyers and sellers to engage in multi-issue negotiations. eAgora implements several protocols based on a negotiation phase model constructed for this system. Its services include a software agent that generates and critiques offers. Based on a small-scale usability testing with participants, who conducted negotiations with and without the agent, the agents services were found useful. The users also requested additional agents services including enhanced offer critique and partial negotiation automation.
dagstuhl seminar proceedings | 2008
Gregory E. Kersten; Eva Chen; Dirk Neumann; Rustam M. Vahidov; Christof Weinhardt
An e-market system is a concrete implementation of a market institution; it embeds one or more exchange mechanisms. E-market systems are also information systems which are information and communication technologies artifacts. This work puts forward an argument that the study of e-markets must incorporate both the behavioral economics as well as the information systems perspectives. To this end the paper proposes a conceptual framework that integrates the two. This framework is used to formulate a model, which incorporates the essential features of exchange mechanisms, as well as their implementations as is artefacts. The focus of attention is on two classes of mechanisms, namely auctions and negotiations. They both may serve the same purpose and their various types have been embedded in many e-market systems.
International Journal of Human-computer Interaction | 2013
Rustam M. Vahidov; Eva Chen; Gregory E. Kersten
This article presents the results of experimental evaluation of the effectiveness of agent support in e-negotiations. The agent-enhanced e-negotiation system eAgora has been used in the experiments. The system features an agent that assists the user in generating candidate offers, evaluating and critiquing incoming offers, and critiquing counteroffers. The work investigates the effects of agent support and task complexity on negotiation performance and perceived measures of usefulness, satisfaction, ease of use, and confidence. Overall, the results support the expectation that use of an agent leads to higher level of negotiation effectiveness, in particular for higher complexity tasks.
hawaii international conference on system sciences | 2010
Gregory E. Kersten; Eva Chen; Jesus Rios; Stefan Strecker
Decision support and the impartation of the principals preferences to the agent may influence the negotiation outcome. A multi-attribute two-party contract e-negotiation was conducted in a controlled laboratory environment. The results indicate that the effectiveness of analytical support depends on the elicitation of the numerical preference values. When preference information is transmitted in qualitative terms to the negotiation agents, analytical support may be counterproductive.
ASAC | 2009
Eva Chen; Rustam M. Vahidov; Dirk Neumann
hawaii international conference on system sciences | 2007
Gregory E. Kersten; Jamshid Etezadi; Eva Chen; Rudolf Vetschera
Group Decision and Negotiation | 2010
Eva Chen; Ilka Weber
Negotiation, Auctions, and Market Engineering - International Seminar, Dagstuhl Castle, Germany, November 12-17, 2006. Revised Selected Papers. Ed.: H. Gimpel | 2008
Gregory E. Kersten; Eva Chen; Dirk Neumann; Rustam M. Vahidov; Christof Weinhardt
Kurs "Group Decision and Negotiation (GDN)", 14.-17.05.2007 in Montreal, Kanada | 2007
Eva Chen; Gregory E. Kersten; Dirk Neumann; Rustam M. Vahidov; Christof Weinhardt; B. Yu
dagstuhl seminar proceedings | 2006
Jesus Rios; Stefan Strecker; JinBeak Kim; Simone A. Ludwig; Eva Chen